The Alienation BMX Effects PC pedals are made from a nylon/fiberglass blend featuring a concave micro knurled body with 14 molded pins per side for maximum traction, minimal cutouts to reduce flex, embossed Alienation logos, unsealed bearings and 6mm thick chromoly spindles for less weight without sacrificing strength. 9/16" (14.8 oz) Note: 1/2" fits 1-pc cranks. 9/16" fits 3-pc cranks.